Ecosystems - Roadless Areas Explorer

Ecosystem Directory

344 ecosystems

Name	Life Form	G-Rank	Areas	Hectares
Intermountain Mountain Sagebrush Steppe	Shrub	GNR	788	978,835
Great Basin Big Sagebrush Shrubland	Shrub	G3	654	162,051
Rocky Mountain Dry Subalpine Spruce-Fir Forest	Tree	GNR	582	735,896
Rocky Mountain Foothill Shrubland	Shrub	G3	519	36,318
Rocky Mountain Lodgepole Pine Forest	Tree	GNR	415	796,798
Rocky Mountain Aspen Forest	Tree	GNR	388	234,003
Rocky Mountain Cliff Canyon and Massive Bedrock	Sparse		337	162,695
Rocky Mountain Subalpine Meadow	Herb	GNR	331	140,166
Rocky Mountain Foothill Streamside Woodland	Tree	G3	324	7,754
Rocky Mountain Wet Subalpine Spruce-Fir Forest	Tree	GNR	322	272,754
Southern Rockies Mixed Conifer Forest	Tree	GNR	314	124,617
Great Basin Pinyon-Juniper Woodland	Tree	GNR	306	678,741
Intermountain Mountain Mahogany Woodland	Tree	GNR	287	116,480
Great Basin Dry Sagebrush Shrubland	Shrub	GNR	261	169,624
Southern Rockies Mixed Conifer Forest	Tree	GNR	259	398,632
California Mountain Chaparral	Shrub	GNR	241	138,453
Southern Rockies Ponderosa Pine Woodland	Tree	GNR	241	195,701
Intermountain Aspen and Conifer Forest	Tree	G4	239	113,387
Rocky Mountain Gambel Oak Shrubland	Shrub	GNR	239	138,805
Northern Rockies Foothill Shrubland	Shrub	GNR	237	138,138
Colorado Plateau Pinyon-Juniper Woodland	Tree	GNR	234	317,710
Northern Rockies Subalpine Woodland and Parkland	Tree	GNR	225	301,716
Intermountain Semi-Desert Grassland	Herb	G2	222	16,944
Southern Rockies Mixed Conifer Forest	Tree	GNR	221	73,318
California Mixed Conifer Forest	Tree	GNR	210	186,065
California Mixed Conifer Forest	Tree	GNR	209	57,402
Central Rockies Douglas-fir Forest	Tree	GNR	193	594,191
Rocky Mountain Foothill Streamside Woodland	Shrub	G3	192	2,857
Northern Rockies Subalpine Grassland	Herb	GNR	187	28,890
Northern Rockies Subalpine Grassland	Herb	GNR	176	85,549
Developed-Roads	Developed		168	12,754
Northern Rockies Foothill and Valley Grassland	Herb	GNR	165	43,869
Intermountain Semi-Desert Shrub-Steppe	Shrub	GNR	164	44,427
Southern Rockies Mixed Conifer Forest	Tree	GNR	158	193,256
Great Basin Subalpine Bristlecone Pine Woodland	Tree	G4	155	68,447
Northern Rockies Ponderosa Pine Woodland	Tree	GNR	152	53,277
Appalachian Cove Forest	Tree	GNR	147	55,941
California Red Fir Forest	Tree	GNR	144	82,357
California Chaparral	Shrub	GNR	143	196,731
California High Mountain Meadow	Herb	GNR	140	29,241
Great Basin Foothill Streamside Woodland	Tree	G3	138	1,162
Pacific Northwest Dry Silver Fir Forest	Tree	GNR	138	84,407
Pacific Northwest Dry Silver Fir Forest	Tree	GNR	130	179,219
Northern Rockies Subalpine Shrubland	Shrub	GNR	129	87,297
Great Basin Big Sagebrush Steppe	Shrub	GNR	123	36,458
Appalachian High Elevation Oak Forest	Tree	GNR	121	53,941
Sierra Nevada Cliff and Canyon	Sparse		119	36,959
Rocky Mountain Subalpine Streamside Woodland	Tree	GNR	117	26,469
Columbia Plateau Steppe and Grassland	Herb	G2	115	24,558
Great Basin Foothill Streamside Woodland	Shrub	G3	115	1,266